Guitry reprises his role as Pasteur which he played successfully at the Vaudeville Theatre in 1919.
as Louis Pasteur
as Grandfather
as Émile Roux
as Doctor
as Doctor
as Doctor
as The first witness
as The second witness
as Sadi Carnot, President of the Republic
as President of the Academy of Medicine
as Little Joseph Meister
as Jules Guérin
as Poggiale
as Student
as Servant (uncredited)
as Joseph Lister (uncredited)
as Student (uncredited)
as Student (uncredited)
as Student (uncredited)
as Student (uncredited)
as Little boy (uncredited)
as Frémy, old doctor (uncredited)
